Fusion Engine hybrid sensor, 8 programmable buttons, On-the-fly DPI Switching, 32-bit ARM processor, 1 millisecond report, High-speed clicking, Full-speed USB, Resolution: 240-4000 dpi, Worlds fastest gaming mouse: Fusion Engine technology and 1MS report rate enables tracking speeds of up to 10 meters/second (420 ips), Responsiveness:USB data format: 16 bits/axis USB report rate: 1000 Hz (1ms) Microprocessor: 32-bit